how can some specialised evolutionary adaptation come into being?
consider this.
Lets say C is a specialised evolutionary adaptation like Wings
C confers the advantage of flight
C consists of smaller adaptations like A, B, C, D
A, B, C, D individually do not confer the advantage of flight, but together the advantage is conferred as an emergent property
Then how come A, B, C, D are naturally selected when they do not individually provide evolutionary benefit?
Its worth noting that for some evolutionary changes, it may require more exponentially more individual changes than the four given whose combination are the ones which actually produce the benefit